# Audio Room Tone Matcher

Match room tone or ambience between two recordings

> Canonical page: https://elysiatools.com/en/tools/audio-room-tone-matcher

- **Category:** Media

- **Keywords:** audio, room tone, ambience, match, mix, ffmpeg, repair

## Overview

Loops a reference ambience bed, blends it into the source, and keeps dialogue intact so edits sit naturally in the target room.

## Inputs

- **Source Audio** (file): Select the source audio
- **Reference Audio** (file): Select the reference room tone
- **Room Tone Gain (dB)** (number)
- **Match Strength** (range)
- **Preserve Voice** (checkbox)
- **Output Format** (select)

## When to use

- When patching dialogue edits recorded in different rooms or at different times.
- When inserting clean studio voiceover tracks into a scene that has distinct background noise.
- When smoothing out abrupt audio cuts in video post-production by matching the ambient noise floor.

## How it works

- Upload your primary source audio file and the reference audio file containing the target room tone.
- Adjust the room tone gain in decibels and set the match strength to control the blend level.
- Enable voice preservation to protect dialogue frequencies, select your preferred output format, and process the audio.

## Use cases

- Blending ADR (Automated Dialogue Replacement) tracks with original on-set production audio.
- Smoothing transitions between different interview clips recorded in varying acoustic spaces.
- Adding consistent background noise to clean studio voiceovers to match field-recorded footage.

## Frequently asked questions

### What audio formats are supported for output?

You can export the matched audio in WAV, FLAC, MP3, M4A, or OGG formats.

### How does the voice preservation feature work?

It isolates and protects dialogue frequencies in the source audio so the blended room tone does not muddy the speech.

### What does the match strength setting do?

It controls the blending ratio of the reference room tone into the source audio, ranging from 0 for no effect to 1 for maximum blend.

### Can I adjust the volume of the added room tone?

Yes, you can set the room tone gain between -40 dB and -3 dB to match the volume level of the target environment.

### Do I need a separate, clean room tone recording?

Yes, you need to provide a reference audio file that contains the target room tone or ambience you want to match.

## Related tools

- [Audio Audiobook Room Tone Inserter](https://elysiatools.com/en/tools/audio-audiobook-room-tone-inserter): Add the required lead-in, lead-out silence, and room tone between audiobook chapters for ACX-compliant submission.
- [Audio Crossfade](https://elysiatools.com/en/tools/audio-crossfade): Apply a crossfade between two audio files
- [Audio Interview Level Matcher](https://elysiatools.com/en/tools/audio-interview-level-matcher): Match loudness between a host and a guest track (or any two voice takes) while preserving natural dynamics.
- [Duplicate Audio Library Finder](https://elysiatools.com/en/tools/audio-duplicate-library-finder): Find exact and near-duplicate audio across uploaded files or a ZIP, including copies saved with different codecs.
- [Audio Mixer](https://elysiatools.com/en/tools/audio-mixer): Mix two audio files together with customizable timing control
- [Audio Spectral Hole Repair](https://elysiatools.com/en/tools/audio-spectral-hole-repair): Fill dull or notched frequency areas with targeted spectral compensation.
- [Audio Time Stretch & Pitch](https://elysiatools.com/en/tools/audio-time-stretch-pitch): Change speed without pitch, or pitch without speed
- [Audio Voice Activity Segmentation](https://elysiatools.com/en/tools/audio-voice-activity-segmentation): Detect likely speech-range activity and export speech/non-speech ranges as JSON, CSV, SRT markers, or an FFmpeg cut list.

## Samples

- [Copyright-Free FLAC Audio Samples](https://elysiatools.com/en/samples/flac-samples): Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio
- [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free Raw PCM Audio Samples](https://elysiatools.com/en/samples/pcm-samples): Raw PCM s16le audio samples featuring nature ambience and relaxing music for waveform, playback, and conversion workflows

## Related content

- [Podcast Recording, Editing, and Delivery](https://elysiatools.com/en/hubs/podcast-recording-editing-delivery): Rescue remote voices, clean speech artifacts, shape the edit, master loudness, add show assets, and validate podcast files before delivery.